I've never run a 2388, but they're supposed to have a lot of capacity, on the other hand, we own a 480, and this summer I spent 2 weeks in a 460, 36 ft. head and about 25-30 bu. durum. It seemed like a dog to a 480, so I don't know, its probably in between. I've also run 470. IT would suprise me if a 2388 could hold its own to that.